I am interested in extracting carbohydrates from isotonic drinks and then working out % by mass in solution.
2006-10-06 11:11:48 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Just the simple carbohydrates or all of them?
Isotonic drinks can have a very wide composition in both carbohydrate and mineral content. All of the ingredients are water soluble, so extraction may not be possible.
Glucose or corn syrup are simple carbohydates. These could be measures directly in the original solution using a colorimetric medthod (using a reagent like Phosphomolybdic acid). Sucrose or complex sugars would need to be "digested" or "inverted" before analysis.
2006-10-06 11:26:08 · answer #1 · answered by Richard 7 · 67⤊ 0⤋
That would depend upon the other substances. If all are water soluble, this will not be practical. If you know the carbohydrate identity, a periodic acid titration could give you a fair idea about the amount.
2006-10-06 11:23:13 · answer #2 · answered by Richard 7 · 0⤊ 0⤋
HPLC against a standard. There are qspecific columns and protocols for this - see eg Waters or Hichrom websites
2006-10-07 08:52:25 · answer #3 · answered by bryan s 2 · 0⤊ 0⤋
What exactly do you want to do with them? If you want to find the weight%, you could just spike it and use HPLC or CE (gotta let it go flat first if they're carbonated).
2006-10-06 11:33:09 · answer #4 · answered by sleeptablets 2 · 0⤊ 0⤋
The answer should be written on the container.
2006-10-06 11:14:21 · answer #5 · answered by Simon K 3 · 0⤊ 0⤋
either it's on the label or you have to titrate to find how much is there
2006-10-06 12:33:00 · answer #6 · answered by shiara_blade 6 · 0⤊ 0⤋